Well, I havent bought an Estilo but did take a test drive and didnt find it good enough to buy one. Here are some of my observations:
The only positive -
1) looks trendy from the outside, sure to make heads turn.
Negatives
2) Only feministic colors. I dont know if Maruti is targetting females only
3) poor quality of interior / upholstery. Probably maruti thinks beige color means good interiors.
4) Compared to previous Zen, less of driving pleasure, less of seating comfort. almost same boot space.
5) lousy pickup. The original Zen was far more responsive. Dont understand why they had to do away with the wonderful engine from the original Zen.
If you are too keen on buying a Maruti only in this segment, better go for WagonR, otherwise a Santro Xing is the best buy any time.
Note: Rating on dealer satisfaction, fuel consumption and reliability not applicable as I have not bought this car and my review was not being accepted without rating these points.